Gordon

This page lists questions and answers that were posted by visitors named Gordon.

Questions

The following questions were asked by visitors named Gordon.

Need ideas for creating a future society. Laws, education, finding leaders, city plans, money. I have most of it done but need to add some more ideas. Thankyou.

I have to write a paper on the decolonization of Gambia (a country in West Africa) or how The Gambia attained its independence. However, I am having a difficult time finding the information. Do you know any internet sites, books, or journals that could su...

Briefly, what is large scale fermentation?

what are the advantages of beginning with RNA versus DNA?

How to solve 2.5e^-t cos2t=0?

So,y(t) = 2.5e^-t cos2t I need to find the derivative, which is y'(t)= -2.5e^-t(2sin 2t +cost 2t) . And now I need to find t when y'(t) = 0 (I know 2.5 e^-t is never zero.) I need to use trigonometry identity to find it ?

25.0 ml of a 0.13M HCL solution is titrated with 17.6 ml of NaOH. What is the Molarity of the NaOH?

A 5.0ml sample of liquid requires 4.5 ml of a 0.093N NaOH solution. What is the titratable acidity of the liquid expressed as g/L Tartaric acid?

What is the pH of a buffer solution of 0.125M Acetic acid and 0.250M Sodium acetate? the Pk of Acetic acid is 4.76

How many rams of 96.5% pure NaOH pellets do you need to make 1 liter of 1.5 N NaOH?

mixing 100ml of 0.015M Nah2PO4 and 100ml of NA2HPO4. What is the pH? This has got to be simple but why am I having trouble with it?

Charge +Q = +7.10 nC is uniformly distributed along the right half of a thin rod bent into a semicirle of radius R = 3.60 cm, while charge −Q = −7.10 nC is uniformly distributed along the left half of the rod. What is the magnitude and direction of the el...

Hi I need help on this bonus question my teacher gave out it's reducing/oxidation equation in an acidic solution. Cr(NCS)6-4 (aq) + Ce+4(aq) ----------> Cr+3(aq) + Ce+3(aq) + NO3-1(aq) + CO2(g) + SO4-2 (aq)

A coat was priced at $200. The sale price was 40% discount. What did the coat cost?

1) A solid has a base area of 345 cm^2 and its volume is 4140 cm^3. A)If that solid is placed in a cylindrical container that is half full of water, to what height will that water rise, if the base of the container is 517.5cm^2. B) if the height from the...

A furniture shop bought a table from the manufacturer and marked up the purchase price by 50%. At the Augustus Homemaker Sale, the price was reduced by 25%. The buyer saved 30$ on the price tag shown in the shop. What did the shop pay the manufacturer for...

Sam sells a suit to Basil at one hundred and thirty three and one third percent of the wholesale price. The suit did not fit so Basil sold it back to Sam for the wholesale price. What is the percentage loss made by Basil?

The inland sandy desert is one of the largest. It covers part of 4 countries. 684000 sq km in desert land 232,000 sq km in sandy land 119000 sq km in Aridland 71000 sq km in Beachland About what percentage of the inland sandy desert is contained in the 2...

From a platform an object is projected vertically into air. Its height, h metres above ground level after t seconds is modelled by equation h=3+20t-5t^2. At what height above the ground is the platform from which the object was projected? Calculate the ti...

Is this a simple subject or a simple predicate? Carla opened the manuscript.

Answers

The following answers were posted by visitors named Gordon.

But I don't understand how t = (2k+1)(pi/4)? From what I calculated, 2t= cos^-1 0 t= 45 Is it correct?

Now I get it..thanks^^ really helps a lot!!

Father is rr Mother is Rr Genotype consists of two alphabets actually. Non roller means both is rr and heterozygous means different alleles (alphabets).

ok~ get it clearly..thanks^^

ph = PK + log (base concentration/acid concentration) pH =4.76 + log (.250/.125) pH = 4.76 = Log (2)

mols HCl= .13M x 25ml = 3.25 M ml 1:1 so mols NaOH = 3.25 M = (3.25 M ml /25 ml) Correct thanks

mew = HOOC-CHOH-CHOH-COOH/2 150 gr/mol /2 = 75gr/mol 4.50ml x .093N x 75 gr/mol = 31.4 grams of tartaric acid in the 5ml sample. 31.4gr /5.0 ml = x gr/1 liter is this correct?

Thanks for helping me.

For the first one I believe it to be C and B For the second it is B and C

Steve, you idiot. There were no typos you completely ignorant buffoon. This person copied and pasted the problem so don't suspect they made a typo and don't assume they made a mistake you cocky peon.

It takes about 15 seconds to realize there is no way to arrive at the answer. 15 cows, has nothing to do with the rest of the quest. Whoever wrote Mark McCain's text book should be fired ;).